<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-lock" type="password"></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
           <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //登录表单数据绑定对象
      loginForm:{
        username:'admin',
        password:'123456'
      },
      //表单验证
      loginFormRules:{
        username:[
          {required:true,message:"请输入登录名称",trigger:"blur"},
          {min:3,max:10,message:"长度在3到10个字符",trigger:"blur"}
          ],
        password:[
          {required:true,message:"请输入登录密码",trigger:"blur"},
          {min:6,max:15,message:"长度在6到15个字符",trigger:"blur"}
        ]
      }
    }
  },
  methods: {
    resetLoginForm(){
      this.$refs.loginFormRef.resetFields()
    },
    login(){
      this.$refs.loginFormRef.validate(async valid=>{
        if(!valid) return;
        const {data:res}=await this.$http.post("login",this.loginForm);
        //console.log(res);
        if(res.meta.status !==200) return this.$message.error("登录失败");
        this.$message.success("登录成功");

        //保存token
        window.sessionStorage.setItem("token",res.data.token)
        
        //登陆成功跳转
        this.$router.push("/home")
      })
    }
  },
}
</script>

<style lang="less" scoped>
.login_container{
  background-color: #2b4b6b;
  height: 100%;
}
.login_box{
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position:absolute;
  left: 50%;
  top: 50%;
  transform:translate(-50%,-50%) ;
  .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position:absolute;
    left: 50%;
     transform:translate(-50%,-50%) ;
     background-color: #fff;
    img{
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.btns{
  display: flex;
  justify-content: flex-end;
}
.login_form{
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>